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P Doped MoO 3− x Nanosheets as Efficient and Stable Electrocatalysts for Hydrogen Evolution
Author(s) -
Li Ling,
Zhang Ting,
Yan Junqing,
Cai Xuediao,
Liu Shengzhong Frank
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201700441
Subject(s) - overpotential , catalysis , electrolyte , materials science , hydrogen , doping , oxygen evolution , intercalation (chemistry) , oxygen , inorganic chemistry , water splitting , nanocomposite , base (topology) , chemical engineering , electron transfer , nanotechnology , electrochemistry , chemistry , electrode , organic chemistry , mathematical analysis , mathematics , optoelectronics , photocatalysis , engineering
A P doped MoO 3− x nanocomposite material with rich oxygen vacancies is successfully fabricated by a two‐step intercalation method, which presents superior activity for the hydrogen evolution reaction with low overpotential and fast electron transfer. In 0.5 m H 2 SO 4 , it displays an overpotential of 166 mV for driving the current density of 10 mA cm −2 . Moreover, it also shows a good catalytic stability in the electrolytes with different pH, 0.5 m H 2 SO 4 (strong acid), 0.5 m Na 2 SO 4 (neutral solution), and 0.1 m NaOH (strong base). The superior catalytic activity and stability are due to to the synergistic effect between the P element doping and the oxygen vacancies.